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      6.34.&nbsp;Bc-1.06.95
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        Linux From Scratch - Version 8.0-systemd
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        Chapter&nbsp;6.&nbsp;Installing Basic System Software
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      <h1 class="sect1">
        <a id="ch-system-bc" name="ch-system-bc"></a>6.34. Bc-1.06.95
      </h1>
      <div class="package" lang="en" xml:lang="en">
        <p>
          The Bc package contains an arbitrary precision numeric processing
          language.
        </p>
        <div class="segmentedlist">
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            <div class="seg">
              <strong class="segtitle">Approximate build time:</strong>
              <span class="segbody">0.1 SBU</span>
            </div>
            <div class="seg">
              <strong class="segtitle">Required disk space:</strong>
              <span class="segbody">3.6 MB</span>
            </div>
          </div>
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      <div class="installation" lang="en" xml:lang="en">
        <h2 class="sect2">
          6.34.1. Installation of Bc
        </h2>
        <p>
          First, fix some minor memory leaks in the code:
        </p>
        <pre class="userinput">
<kbd class="command">patch -Np1 -i ../bc-1.06.95-memory_leak-1.patch</kbd>
</pre>
        <p>
          Prepare Bc for compilation:
        </p>
        <pre class="userinput">
<kbd class="command">./configure --prefix=/usr           \
            --with-readline         \
            --mandir=/usr/share/man \
            --infodir=/usr/share/info</kbd>
</pre>
        <div class="variablelist">
          <p class="title">
            <strong>The meaning of the configure options:</strong>
          </p>
          <dl class="variablelist">
            <dt>
              <span class="term"><em class=
              "parameter"><code>--with-readline</code></em></span>
            </dt>
            <dd>
              <p>
                This option tells Bc to use the <code class=
                "filename">readline</code> library that is already installed
                on the system rather than using its own readline version.
              </p>
            </dd>
          </dl>
        </div>
        <p>
          Compile the package:
        </p>
        <pre class="userinput">
<kbd class="command">make</kbd>
</pre>
        <p>
          To test bc, run the commands below. There is quite a bit of output,
          so you may want to redirect it to a file. There are a very small
          percentage of tests (10 of 12,144) that will indicate a round off
          error at the last digit.
        </p>
        <pre class="userinput">
<kbd class="command">echo "quit" | ./bc/bc -l Test/checklib.b</kbd>
</pre>
        <p>
          Install the package:
        </p>
        <pre class="userinput">
<kbd class="command">make install</kbd>
</pre>
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          <a id="contents-bc" name="contents-bc"></a>6.34.2. Contents of Bc
        </h2>
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            <div class="seg">
              <strong class="segtitle">Installed programs:</strong>
              <span class="segbody">bc and dc</span>
            </div>
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          <h3>
            Short Descriptions
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              <col />
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                  <p>
                    <a id="bc" name="bc"></a><span class="term"><span class=
                    "command"><strong>bc</strong></span></span>
                  </p>
                </td>
                <td>
                  <p>
                    is a command line calculator
                  </p>
                </td>
              </tr>
              <tr>
                <td>
                  <p>
                    <a id="dc" name="dc"></a><span class="term"><span class=
                    "command"><strong>dc</strong></span></span>
                  </p>
                </td>
                <td>
                  <p>
                    is a reverse-polish command line calculator
                  </p>
                </td>
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